Evidence map›Paper›PMID 22773807›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Phenanthriplatin, a monofunctional DNA-binding platinum anticancer drug candidate with unusual potency and cellular activity profile.

Ga Young Park, Justin J Wilson, Ying Song, Stephen J Lippard

Abstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed
13.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

98 citing papers in PubMed, 317 citations in OpenAlex.

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  16. Wireframe DNA Origami for the Cellular Delivery of Platinum(II)-Based Drugs.International journal of molecular sciences · 2023
    Article
  17. Photoactive monofunctional platinum(II) anticancer complexes of multidentate phenanthridine-containing ligands: photocytotoxicity and evidence for interaction with DNA.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2023
    Article
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38 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 3 countries.

Ga Young ParkDepartment of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Justin J Wilson
Ying Song
Stephen J Lippard
CSD Engineers (Switzerland) · CHCambridge Crystallographic Data Centre · GBMassachusetts Institute of Technology · US

Funding

Understanding and Improving Platinum Anticancer DrugsR01CA034992 · NCI · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI YILMAZ, OMER · 1985 to 2018
$6.8M
CHEMISTRY AND BIOLOGY OF PLATINUM ANTICANCER DRUGSR37CA034992 · NCI · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI LIPPARD, STEPHEN J. · 1990 to 2008
$5.7M
ACQUISITION OF A 400 MHZ NMR INSTRUMENTS10RR013886 · NCRR · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI BUCHWALD, STEPHEN L · 1999 to 1999
–
NCI NIH HHS CA034992NCI NIH HHS R01 CA034992NCI NIH HHS R37 CA034992NCRR NIH HHS 1S10RR13886-01
6 · The paper itself

Abstract

Monofunctional platinum(II) complexes of general formula cis-[Pt(NH(3))(2)(N-heterocycle)Cl]Cl bind DNA at a single site, inducing little distortion in the double helix. Despite this behavior, these compounds display significant antitumor properties, with a different spectrum of activity than that of classic bifunctional cross-linking agents like cisplatin. To discover the most potent monofunctional platinum(II) compounds, the N-heterocycle was systematically varied to generate a small library of new compounds, with guidance from the X-ray structure of RNA polymerase II (Pol II) stalled at a monofunctional pyriplatin-DNA adduct. In pyriplatin, the N-heterocycle is pyridine. The most effective complex evaluated was phenanthriplatin, cis-[Pt(NH(3))(2)(phenanthridine)Cl]NO(3), which exhibits significantly greater activity than the Food and Drug Administration-approved drugs cisplatin and oxaliplatin. Studies of phenanthriplatin in the National Cancer Institute 60-cell tumor panel screen revealed a spectrum of activity distinct from that of these clinically validated anticancer agents. The cellular uptake of phenanthriplatin is substantially greater than that of cisplatin and pyriplatin because of the hydrophobicity of the phenanthridine ligand. Phenanthriplatin binds more effectively to 5'-deoxyguanosine monophosphate than to N-acetyl methionine, whereas pyriplatin reacts equally well with both reagents. This chemistry supports DNA as a viable cellular target for phenanthriplatin and suggests that it may avoid cytoplasmic platinum scavengers with sulfur-donor ligands that convey drug resistance. With the use of globally platinated Gaussia luciferase vectors, we determined that phenanthriplatin inhibits transcription in live mammalian cells as effectively as cisplatin, despite its inability to form DNA cross-links.

Indexed as

Models, MolecularAntineoplastic AgentsCrystallography, X-RayDeoxyguanine NucleotidesDNADrug DiscoveryGene Expression Regulation, NeoplasticGenetic VectorsInhibitory Concentration 50LuciferasesMolecular StructureOrganoplatinum CompoundsPhenanthridinesPlatinum CompoundsAntineoplastic Agentscis-diammine(pyridine)chloroplatinum(II)Deoxyguanine NucleotidesDNALuciferasesOrganoplatinum CompoundsPhenanthridinesphenanthriplatinPlatinum Compounds

Identifiers

PMID22773807
PMCPMC3409760
OpenAlexW2033271093

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.